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Online since: August 2021
Authors: Mustafa Mazin Ghazi, Ahmad Jabbar Hussain Alshimmeri
The benefit of Standardized tests was to find the properties of materials according to (ASTM) and (IQS).
Sand's properties (Physical & Chemical).
Concrete Tests and Results The following concrete properties were investigated in this study: the strengths of compressive, the splitting tensile, and Modulus of Rupture.
Hashim, ‘The impact of grinding time on properties of cement mortar incorporated high volume waste paper sludge ash’, Karbala Int J Mod Sci, vol. 6, no. 4, 2020
Ibrahim, ‘Properties of eco-friendly cement mortar contained recycled materials from different sources’, J Build Eng, vol. 31, p. 101444, 2020, doi: https://doi.org/10.1016/j.jobe.2020.101444
Online since: September 2017
Authors: Alexander V. Evteev, Elena V. Levchenko, Graeme E. Murch, Rafał Leszek Abdank-Kozubski, William Yi Wang, Irina V. Belova, Tanvir Ahmed, Zi Kui Liu
Introduction The development of commercial superalloys based on the Ni-Al system has attracted a great deal of attention due to their excellent high-temperature physical and mechanical properties [1-5].
Meanwhile, a detailed quantitative summary of similar properties for the model of Ni50Al50 melt with the same potential can be found in Ref. 16.
Thermodynamic and kinetic properties predicted by the EAM-2009 potential for the Ni25Al75 melt.
Thermodynamic and kinetic properties predicted by the EAM-2009 potential for the Ni75Al25 melt.
[4] Proceedings of the International Symposium on Nickel and Iron Aluminides: Processing, Properties, and Applications, edited by S.C.
Online since: May 2025
Authors: Petr Štěpánek, František Girgle, David Vašátko, Kateřina Mrkvova
The beams were reinforced in various configurations and, among other factors, the effect of the reinforcement ratio on the degree of redistribution of bending moments was examined.
Given the limited scope of this article, the authors are focused solely on a particular aspect of the problem, and do not address the variability in material properties, geometry, etc.
Table 1.Material properties used in the calculation FRP tensile strength [MPa] 649 modulus of elasticity [GPa] 67,1 tensile rupture strain [‰] 9,67 concrete compressive strength [MPa] 39 modulus of elasticity [GPa] 38 Moment-Curvature Relationship To describe the behavior of a concrete cross-section reinforced with FRP reinforcement, we can use the relationship between the bending moment and the curvature of the cross-section.
This relationship helps to understand and visualize how the cross-section behaves under different levels of applied load and what is the mechanical response of the reinforced sections when loaded.
It is important to analyze how different reinforcement areas affect moment-curvature relationships and the overall stiffness of the section.
Online since: March 2025
Authors: Huyen Lynh Duong, Quoc Nguyen Banh, Van Keo Dong, Xuan Hiep Tran, Anh Son Tran
Determination of Geometrical Parameters to Balance the Pressure Drop of Channels on a Microfluidic Chip Keo Van Dong1,2,3,a, Hiep Xuan Tran1,2,b, Quoc-Nguyen Banh1,2,c, Son Anh Tran1,2,d , and Lynh Huyen Duong1,2,e* 1Department of Manufacturing Engineering, Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam 2Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam 3College of Engineering, Can Tho University, Can Tho City, Vietnam advkeo.sdh231@hcmut.edu.vn, btxhiep.sdh21@hcmut.edu.vn, cbqnguyen@hcmut.edu.vn, dtason@hcmut.edu.vn, edhlynh@hcmut.edu.vn *Corresponding author email: dhlynh@hcmut.edu.vn Keywords: Microfluidic Chip, Droplet-based Microfluidic Chip, Branching channels, Pressure drop Abstract.
Q1Q2=A2A1 (18) Based on Eq. 13, Eq. 16, Eq. 17, and Eq. 18, we can calculate the length L2 for two different channel profiles by using Eq. 19 and Eq. 20 below, where, ΔP is the pressure drop along the channel segment, k is the Consistency Index, which is related to the properties of the fluid and the channel (the k value obtained from Table 1), n is the Flow Behavior Index (the n value obtained from Table 1), Q is the flow rate of the fluid (0.2 mL/min), H and W are the dimensions of the microchannel as described in Fig. 2 and Fig. 3 above For rectangular microfluidic channels: L=ΔP.H2κ12Q2n+1H2Wnn (19) For trapezoid microfluidic channels L=ΔP.H2κ14Q2n+1H2W1+W2nn (20) As a result, the value of L2 for the trapezoidal channel cross-section is 52 mm, whereas for the rectangular channel cross-section, it is 56 mm.
Further studies could explore how variations in the flow rate, fluid properties, and channel design impact the overall performance of microfluidic devices.
Conclusions In microfluidics, pressure drop plays a critical role in controlling the flow of fluids through narrow channels, where factors such as fluid viscosity, channel geometry, and flow rate significantly influence the system's performance.
Specifically, the bend sections are expected to incur higher pressure losses compared to the straight segments, which can affect overall system performance.
Online since: March 2019
Authors: Rahul Mitra
Efforts have been also made to develop multicomponent Nb-silicide based alloys with optimum combination of mechanical properties and high temperature oxidation resistance with limited success.
Summary The oxidation behavior of Mo, Nb and Ti silicide based alloys and composites is controlled by thermodynamic stability of oxidation products as well as kinetic factors affecting growth.
Raj, An evaluation of the properties of Cr3Si alloyed with Mo, Mater.
Rama Rao, Microstructure, mechanical properties and oxidation behavior of a multiphase (Mo,Cr)(Si,Al)2 intermetallic alloy–SiC composite processed by reaction hot pressing, Mater.
Rama Rao, Microstructure, mechanical properties and oxidation behavior of a multiphase (Mo,Cr)(Si,Al)2 intermetallic alloy–SiC composite processed by reaction hot pressing, Mater.
Online since: December 2012
Authors: Noor Aman, Trilochan Mishra
Fermi level position, electron mobility, surface hydroxyl concentration are the main factors responsible for its higher activity.
In fact, TiO2-ZrO2 mixed oxides exhibit high surface area, profound acid-base properties, a high thermal stability and strong mechanical strength.
All these factors are responsible for an enhancement in photogenerated electron-hole separation and thus increased photocatalytic activity.
The photoactivity was initially affected by factors such as the amount of inactive surface SiO2, TiO2 particle size, and surface area.
Mahumani, Synthesis and properties of Cu2O quantum particles, J.
Online since: December 2015
Authors: K. Mustapha, S.T. Azeko, O.S. Odusanya, E. Annan, Karen Malatesta, W.O. Soboyejo
Soboyejo1, 4* 1 Department of Material Science and Engineering, African University of Science and Technology, Abuja-Nigeria; 2 Department of Material Science and Engineering, University of Ghana, Legon-Ghana; 3 Sheda Science and Technology Complex (SHESTCO), Abuja-Nigeria; 4Department of Mechanical and Aerospace Engineering, Princeton University, 1 Olden Street, Princeton, NJ, 08544, USA.
This, therefore, depicts a weak dependence in terms of the distribution being normally distributed, which subsequently affected the correlation between them.
The key condition for operation without fracture would be to ensure that the stress intensity factor, K, applied to the cracks in the ceramic water filters are less than the fracture toughness (KIC). 4.4 Implications The implications of the above results are quite significant.
‘Implementation, Critical Factors and Challenges to Scale-Up of Household Drinking Water Treatment and Safe Storage Systems’.
‘Physical Properties of Porous Clay Ceramic-Ware’, Journal of Engineering Materials and Technology, Vol. 133, 0.31004-1-0310004-9
Online since: December 2011
Authors: Zhi Xiang Xu, Li Min Zhang, Qing Sun, Lei Xu, Jie Zhou
Thirdly, the SPE column is washed so that the impurities can be removed away while the adsorbed target is not affected.
With a sample loading flow rate of 5 mL min−1 for 2 min, an enhancement factor of 670 and a detection limit (S/N = 3) of 6 ng L−1 were achieved at a sample throughput of five samples h−1.
At the flow rate of 1.5 mL min-1, the enrichment factor for standard solution of Sudan I (50 mL, 0.01 μg L-1) was 1266.
Second, imprinted polymer with different selectivity could be designed according to the object properties.
Influence of Mobile Phase Composition and Cross-Linking Density on the Enantiomeric Recognition Properties of Molecularly Imprinted Polymers.
Online since: September 2022
Authors: Mohd Rafie Johan, Nadiah Ghazali, Fariza Abdul Rahman, Wan Jefrey Basirun, Magaji Ladan
Table 1 shows the properties of the applied materials.
Physical properties of the coated mild steel.
However, the coating deteriorated over time due to various factors.
The small loading of PANI/Sn-doped TiO2 nanocomposite greatly improved the coating performance due to its excellent mechanical barrier and antioxidant properties.
Venkatachari, Anticorrosive properties of PANI-ATMP polymer containing organic coating, Prog.
Online since: September 2011
Authors: Feng Hua Zhao, Jun Yang
Zhou etc. [3] investigated the mechanical properties of laminated rubber isolator, drafted the laminated rubber isolation technical regulations.
(2) Seismic Isolation Property.
(3) Restoration Property.
(4) Damping Energy-dissipation Property.
Life Cycle Cost Undeniably, economic index is an important factor that affects the developers’ and proprietors’ decision-making.
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